diff options
Diffstat (limited to 'clang/test/CodeGen/fp-contract-pragma.cpp')
| -rw-r--r-- | clang/test/CodeGen/fp-contract-pragma.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/clang/test/CodeGen/fp-contract-pragma.cpp b/clang/test/CodeGen/fp-contract-pragma.cpp index 86e236e4db5..1ea974f5fef 100644 --- a/clang/test/CodeGen/fp-contract-pragma.cpp +++ b/clang/test/CodeGen/fp-contract-pragma.cpp @@ -62,3 +62,15 @@ float fp_contract_6(float a, float b, float c) { return a * b + c; } +// If the multiply has multiple uses, don't produce fmuladd. +// This used to assert (PR25719): +// https://llvm.org/bugs/show_bug.cgi?id=25719 + +float fp_contract_7(float a, float b, float c) { +// CHECK: _Z13fp_contract_7fff +// CHECK: %mul = fmul float %b, 2.000000e+00 +// CHECK-NEXT: fsub float %mul, %c + #pragma STDC FP_CONTRACT ON + return (a = 2 * b) - c; +} + |
